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IMPORTANT: As of Leopard, Poff is not maintained anymore. It may work on new versions of Mac OS X - or not.

Poff ("Ping and Off") is a system daemon that shuts down slave computers (which it is installed on) when the master computer is switched off (and therefore doesn't respond to pings anymore). It can be used to switch off numerous computers like in computer labs without having to walk up to every single lab computer.

Every slave computer sends one ping packet (9 bytes) per minute, so there's not a lot of network chatter. Temporary network outages have no impact, see the new and improved documentation embedded in the

What's New in Poff

Version 1.4: Preserve preferences when updating, much more detailed documentation.

Requirements for Poff

Mac OS X 10.2 or later (with BSD subsystem, which is installed by default by the OS X installer CDs).
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Poff User Discussion

Current Version (1.x)
Downloads 3,847
Version Downloads 1,987
License Free
Date 16 May 2005
Platform OS X / PPC 32 / Intel 32
Price Free
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